DSPMAWBELL

 Wireless Siren
 433MHz RF two-way wireless
 350mAh battery
 AES-128 encryption
 Tamper alarm
 Communication distance: 800M
(Open area) Wireless Siren

 433MHz RF two-way wireless

 350mAh battery

 AES-128 encryption

 Tamper alarm

 Communication distance: 800M

(Open area)